44 citations · 99 across the 8 of their papers we have counts for
10 papers
EK Cha b: multi-tracer detection of a protoplanet candidate in a gas-rich environment
Felipe Alarcón, C. Swastik, Stefano Facchini +2
Despite sustained community efforts and advances in instrumentation and high-contrast imaging, the search for protoplanets remains difficult, with only two widely accepted systems…
Host-star metallicities and kinematics of directly imaged brown-dwarf companions
C. Swastik, R. K. Banyal, M. Muduli +15
Brown dwarfs are common as free-floating objects but rare as close companions to Sun-like stars, a disparity known as the "brown-dwarf desert". Host-star metallicity can constrain…
Exoplanet Classification through Vision Transformers with Temporal Image Analysis
Anupma Choudhary, Sohith Bandari, B. S. Kushvah +1
The classification of exoplanets has been a longstanding challenge in astronomy, requiring significant computational and observational resources. Traditional methods demand substan…
The 10 pc Neighborhood of Habitable Zone Exoplanetary Systems: Threat Assessment from Stellar Encounters & Supernovae
Tisyagupta Pyne, Ravinder K. Banyal, C. Swastik +1
The habitability of a planet is influenced by both its parent star and the properties of its local stellar neighborhood. Potential threats to habitability from the local stellar en…
Age analysis of extrasolar planets: Insight from stellar isochrone models
C. Swastik, Ravinder K. Banyal, Mayank Narang +2
There is growing evidence from stellar kinematics and galactic chemical evolution (GCE) suggesting that giant planets (M0.3) are relatively young compared to the m…
Age distribution of exoplanet host stars: Chemical and Kinematics age proxies from GAIA DR3
C. Swastik, Ravinder K. Banyal, Mayank Narang +4
The GAIA space mission is impacting astronomy in many significant ways by providing a uniform, homogeneous and precise data set for over 1 billion stars and other celestial objects…
Carbon abundance of stars in the LAMOST-Kepler field
Athira Unni, Mayank Narang, Thirupathi Sivarani +5
The correlation between host star iron abundance and the exoplanet occurrence rate is well-established and arrived at in several studies. Similar correlations may be present for th…
Galactic chemical evolution of exoplanet host stars: Are high-mass planetary systems young?
C. Swastik, Ravinder K. Banyal, Mayank Narang +5
The imprints of stellar nucleosynthesis and chemical evolution of the galaxy can be seen in different stellar populations, with older generation stars showing higher -element ab…
Host star metallicity of directly imaged wide-orbit planets: implications for planet formation
C. Swastik, Ravinder K. Banyal, Mayank Narang +4
Directly imaged planets are self-luminous companions of pre-main sequence and young main sequence stars. They reside in wider orbits (~AU) and gene…
Bouncing Universe with exotic radiation
C. Swastik, P K Suresh, Barun Maity
Scenario bouncing can give the cosmology singularity problem a possible way out. Finding a solution for the universe's bouncing model requires proper estimation of the state equati…